"I was reading the dictionary. I thought
it was a poem about everything."
                     --Steven Wright

Appropriate Preposition:

  • Commence on ( শুরু করা ) Our examination commences on the 3rd July.
  • Useful to ( প্রয়োজনীয় (ব্যক্তি) ) This book is useful to us for examination.
  • Slow of ( ধীর ) He is slow of speech. He is slow at figures. He is slow in writing.
  • Escape by ( রক্ষা করা ) He escaped by a hair breadth.
  • Engaged in ( নিযুক্ত (কাজে) ) I was engaged with him in talk.
  • Differ in ( ভিন্ন মত হওয়া (মতামত) ) They differ in their opinions.

Idioms:

  • Do yeoman's service ( বিশেষ উপকার করা ) Raja Rammohan Roy has done yeoman's service to our country.
  • put the cart before the horse ( স্বাভাবিক অবস্থা উলটাইয়া দেওয়া ; অস্বাভাবিক অবস্থা পরিণত করা )
  • In the nick of time ( ঠিক সময়ে ) The school team arrived in the nick of time.
  • At home ( দক্ষ ) He is at home in mathematics.
  • In force ( বলবৎ ) This law is in force now.
  • At a loss ( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.